Ardent Avanti fans point to its fairly timeless styling, which was supervised by the great Raymond Loewy, and the fact that the car remained in production in one form or another for five decades. Non-fans find the grill-less front end and porthole-like headlights to be a non-starter.<br>For the original version including any supplementary images or video, visit http://www.foxnews.com/leisure/2013/11/15/5-history-most-controversial-cars/